Users not showing up

I Have 49 subscribers but my site only shows 27 members? I also tied to change a pending member to a member (i have 35 pending) have installed the buddypress pending activations plugin? also tried unconfirmed plugin, on the pending members that does not work either?

Also added the code you said in another chat but does nothing?

add_action(‘bp_core_activated_user’, ‘kleo_add_member_activity’);
function kleo_add_member_activity($user_id, $key, $user )
{
add_user_meta( $user_id, ‘last_activity’, date(“Y-m-d H:i:s”));
}